pazzano r



Dec. 19, 1933.

F. F. PAZZANO TOOL Original Filed Dec. 29, 1930 2 Sheets-Sheet 2 Reissued Dec. 19,1933

. 1' UNITED STATES Tool. 7 Frederick F. Paz'zano, Waltham, Mass.

Original No. 1,898,568, dated'February21, 1933, Serial No. 505,436, December 29, 1930. Appli-v cation for reissue August 18, 1933. Serial No.

I 2 Claims.

This invention relates to certain new and use-' ful improvements in tools, and the primary object of thepresent invention is to provideatool especially adapted for the removal of automobile 5 storage battery terminal clips, the object of the invention .being to provide a tool. equipped with a pair of jaws for. loosening and tightening the clip nut, and for lifting or removing the clip, together with additional means adaptedjto be inserted in the confine of the clip for spreading the same to facilitate removal of the clip from the storage battery terminal.

.A further object of the invention is to provide atool of this characten which-is comparatively simple in construction, consists of relatively few parts, and which will be found thoroughly efiicient for the purpose designed.

Other objects and advantages of the invention will become apparent during a study of the following description, taken in connection with the accompanying drawings wherein:

Fig. 1 is a side elevational view of the tool;

Fig. 2 is a bottomplan view thereof;

Fig. 3 is an edge elevational view of one of 25. the jaws; 7

Fig. 4 is anelevational view of the other of the jaws;

Fig. 5 is partial side elevation of the tool, upon a larger scale, illustrating its use in manipulatinga nut of a storage battery terminal clip; and

Fig. 6 is a similar view as Fig. 5, but showing the tool in use for'automatically loosening or lifting iii a terminal .clip from a storage battery terminal. With reference more in detail to the drawings,

it will be seen that the tool comprises a pair of levers 1 and 2 respectively, each comprising a handle member at one end and an opposite end or head portion. The lever 1, hereinafter termed thelonger or outer lever, adjacent one end'thereof,

40 namely, upon its head-portion, is provided with a seat or lateral notch 3, and at the forward end of the notch has projecting laterally therefrom an arcuate'jaw 4 having a concaved work-engaging face provided with teeth 5, said jaw as illustrated having a relatively narrow or thinly tapered outer end. Extending laterally from the lever l in a direction opposite to the toothed jaw 4 is an integral lug or work-spreading finger 6, preferably disposed obliquely with respect to the ,50 longitudinal axes of the lever 1.

. 5 or seat 8 defined by upper and lower shoulders 9 direction of the lever axes.

and 10. This projection '7 is pivoted at its seat 8 upon the seat 3 or notch of theiother lever, substantially centrally of said. seats, through the medium of a suitable pivot pin 11.

The projection 7 of the inner lever 2 at its free end terminates in a jaw 12, which jaw 12 is in the same or substantially the same plane, transversely of the pivot, as the'jaw 4. Said jaw 12 has at least an outer portion of its free end nonconcave, preferably convex, andat its freeend is provided with a series of teeth 13, illustrated as arcuate, for cooperation with the teeth 5.

Projecting laterally from the lever 2oppositely with respect to the projection 7 is a work-spreading finger or lug 14 cooperable with the lug 6, for the purposes previously and hereinafter indicated.- v It will be noted, referring particularly to Figs. 1, 5 and 6, that the head portions of the levers are of different extents, beyond the pivot point 11, that of the outer lever l'extending substantially beyond that of the other or inner lever 2, in the It is also of particular note that the toothed jaws 4 and12 both project laterally upon'the same side of the pivot point, and that one of them, herein thejaw 12 of the inner lever 2, is shorter than the other, here in the jaw 4, and that a portion of the toothed work-engaging face 13 of the shorter jaw 12 is operatively positionable radially opposite the work-engaging face 5 of the jaw '4, with reference to the pivot point. In other words, the inner jaw 12 through at least the major range of its operative positions lies radially within or in radial opposition to an enclosing arcuate portion of the outer jaw 4, so that radial lines extended out through the toothed work engaging face 13 of the inner jaw intersect the arcuate toothed face 5 of the outer jaw at circumferentially spaced Points. 1 y v g In actual practice and when using the tool for loosening .or tightening the nut of a storage bat tery terminal, the jaws 4 and 12 are moved into engagement with the nut by moving the levers 1 and 2 toward one another, and then by suitably manipulating the tool the nut may be threaded relative to its bolt forloosening or tightening the that limited space, in opposition to the face 12 of the other jaw, radially of the pivot 11.

Another important function of the tool is that 'of automatically loosening and lifting a terminal clip, in the manner illustrated in Fig. 6. For this purpose the shorter and substantially radial jaw 12.01 the iinner'leyer 2 isset onthe'top face of the battery terminal T, while the end of the outer jaw 4 is inserted below the clip C, so"th'at"" operative portionsof said jaws are substantially in radial opposition with respect to the tool pivot. Down pressure is maintained on the radial jawm 12, which serves in the manner of afixed fulcrum, and closing pressure applied totlielevers'exerts" a strong upwardly acting component on the-jaw: 4, substantially radially of'ianad toward. the pivot 11. The clip C accordingly 1s loosened and actu-' ally lifted up off of its seat on the battery terminal T. Clips such as C are thus readily loosened or i removed, automatically, despite their frequent corrosieniand tight wedging. upon the terminals, makingdhem otherwise diffieult'to take t-off. The:

- radial-"or: ssubstantial1y-v radially opposed cooperae tion of the jaws, or the 'radiat force component, may readilybe visualizedbyreference to thedot and--dashlinesiinFigs;5 andfin 7 To use the toolwforj spreading: the clip.- of 1 the battery terminal, levers l and 2 are moved. away from one another for positioning-=the lugs 6 and- 1-1-adjaoent one another, I and the lugs maybe then'insertedrwithin the confinesof thecli-p, one face of east: lug, Sand 14 being suitably rounded conformably to: engage a portion; of the clip. While moving he levers Iand-Ztoward one a-n-- other forspreadim.thelugs 6 and 14 apart-the terminal-clipiwill' be spread? or expa-ridedVthus facilitating removal of the clip from about the battery terminal; or: preparing it-for positioning 'Ibetool-lofimy-invention,

upon-such-tenninal. In their closed condition said lugsmay also be utilized'as a reamer. or.

' ticalarlwwhenthe clip or connectoras shown at Gis in position :upon, the terminal. Such term-inal or post-nutsN are generally of theflat characterrillustrated and the, clipsset down upon the te'rmmal relatively closely'to the nuts; affording but 'limitedworklng space for'access to the nuts.

It will be noted in this connection that the'workengaging jaws 01' my tool as shown" are desirably relatively thin and flat,'belng constructed and arranged for application to the battery ter.

minal nuts N and for operative manipulation within the limited space referred to.

It is thought that from the foregoing description taken in connection with the drawings a clear understanding of the operation, construction, utiiitygand advantages of. a tool of thismharacter will be had by those skilled in the art without a more"detailed description.

,It is' to be understood while I have herein shown and described a preferred embodiment of tlfi invention, that the same is susceptible of modifications, improvements and variations comirig'withirrthe'scope of the appended claims.

described my claimmsmewis:

1. A combination -tool comprisingin combination a pair of pivotally mounted levers,'provided at. their {corresponding ends with cooperating work' spreading fingers, one'of said handle members havingea transverse: slot and? tin; other: :of I said handlermemberswhaving .a' lateralaprojection; operablef-withinwthe slot,,and terminating at its; freeend zine a=portion-=inclined zto'the; Faxes: oftthea: handle members and I. provided; with: a; convex-1 toothed iworksengaging face; and: firsfimemtioned handle -tmemberadjacent: the: slotproevided wi-tha lateral projectiorrihaving; a concave: toothed -work: .engaging-face confronting. theaworls: engagingzfaee; of"; said inclinediportion; saida work I spread-ingefingers .:confronting;, one; another:v and adapted to engage oner-withzthecothera'when;

the'l'iandle members a. reespreadsapartato; thereby limit relative F the :han'dle.

w V. I 1'10 V 2.; A rcombination tool ..comprising; in :combinartion a pair of pivotedlevers; corresponding; ends.

of said! levers beingformed as: handle; members invention what I and saidi leversr having head portions: at their" other: ends-, the :head portion of 5 each :lever: in- I eluding a transverse: positioning;- sea-t and; pivot 1 mounting for the-other: lever, a. workespreading finger proj acting at onekside r'0fr, seat angularly with 188196013 1301 the-lever-axis;- and also including a laterally projecting jaw attheroppositei FREDERICK E." mun side-of:saidqseat-havlngga toothedn worm-engaging 

